Edwin williams



EDWIN WILLIAMS', or IIOWL'ESBURG, WEST VIRGINIA.

Letters Patent No. 76,022, dated llfareh 24 185.8.

Inrsovnunur IN Woon-ruRNI'NeLATIIBs.

dit Srlgihnl entre: in im' .there trttrrt wird mit mating] nu .ci ttt tame.

TO ALI. WHOM I'I MAY'CONCERN:

Beit known that I, EDWIN WILLIAMS, of Rowlesburg, In the county of Preston, and State of West Viri ginia, have invented a new and useful Improvement in Broom-Handle Lathe; and I do herebydeclare that the c following is a full, clear, Aand exact description thereof, `which will enable others skilled in vthevart to malierand use the same, reference being. had to the accompanying drawings, forming part of this specification, in'which Figure 1 is anrend view of my improved device. i

FigurefZ is a side View ofthe same. 4

Figure 3 is a detail sectional viewof the same, taken through the lino zw, iig. l.

Similar letters of reference indicate like parts.

My invention has for its object to improve the construction ot' Peter 'Prescotts hroom-handle'lathe, patented October 8, 1861,*and numbered 33,466, so as to make it more satisfactory and effective inoperation.

In Prescotts patent the cutterblocks are provided with pins,V extending through openings in the flanged 'head of the hollow spindle, and through openings in the flange of the sliding collar. As the collar is moved to or from the Bange, upon the spindle, the pins areextend-'ed through or withdrawn from said collaraand thereby made toassume av greater or less angle, determining the degree ofcontractiouor expansion of the cutter-blocks. ','By this arrangement the pins cannot be madeto hold the cutter-blocks'in place when the lathe is in motion. In order to render the pins operative, the openings in the flanges of the collar and spindle must .he of greater diameter thanitlic pins to accommodate the var-ying angles oi' the latter, as the cutter-blocks are opened or closed. VThis construction causes the pins to play to a greater 'or less extent, and when the revelutions ofthe spindle have reached the requisite velocity to turn the 'broom-handley the cutter-Bloche are Yliahle to^be=t`hrown open and` destroy the shape of said handle. 'The constant play of the cutters, when the spindle is revolving at low speed, also destroysthe symmetryoi' the broom-handle, causing uuevenncss and irregularities.-

My invention is designed to obviate these diheulties, asf-the arms operating the cutters are rigidly secured in the flange 'o'f the sliding collar, and pass in horizontal planes through the angeof vthe spindle. The open. ings in the flange are therefore onlyvsuihcicn'tly largeto receive 'the arms without any lateral or side'play. i

The outer. ends of the arms are slotted diagonally, to receiverpins upon-the fre'eends of the cutter-blocks, which blocks are expanded or contracted thereby; `The inelinationof the 'slots holds the pins perfectly rigid inwhatever position the cutter-blocks are made to assumle. i

A is the hollow spindle, about the construction and opera-tion of which there is nothing new. B is acollar, sliding back and 'forth upon the hollow spindlefA. *.To the yhead or flange ofl the collar B, are securely and rigidly attached two arms C`,lvvhich pass through and fit into slots or holes in-the ange or heada of the hollow spindle A, as shown in figs. 2 and 3. Dare the cutter-blocks, one end of each o` 'which is pivoted to the face of thehead a', oi' the hollov. spindle A, and the other or free ends hai/e projections or pins "formed upon or attached to them, which pass throughincline slots in the arms C o f thesliding collarl'7 as shown in figs. I, 2, and 3, so that as the sliding collar is drawn in one direction, the cutter-bloclis will 'oe drawn towardsach other, and'when moved inthe other. direction, they will be drawn from each other. i The sliding collar is moved buck and forth by a lever, as itisl acted upon by an eccentric, so that the cutter-bloclis-ii1nybe gradually expanded and then gradually contracted, and soon-alternately. I i

In using the machine, the broom-handles are turned alternntely'from' the larger to-the smaller end, and from the smaller to the larger end, which enables larger number of handles to he turned in. the same time than c-.m be done Without my improvements. My improvements also effectue-ily guardA against thc tendency of' the cutter-blocks to ily off or expand from the centrifugal force engendered By the rapid revolution ofthe hollow spindle, andthus enable the handles to be turnedwith a true taper. i

I claim as new, and desire top 'secure by Letters Patent- I i i The sliding collar IS, `when provided with the arms c, passing throughI slots in the Bange a' of the hollow spindle A, and having the diagonal slots for the reception of the pin d upon 'opposite ends of the cutters D,

which are also pivoted at opposite ends to'thetlangevvot' thehollow spindle.. all constructed and operating as described for the'putpose specified.

EDWIN WILLIAMS. Witnesses:

T. B. ANNAN,

Toros. CAssEDYI 

